Example usage for org.objectweb.asm Opcodes ALOAD

List of usage examples for org.objectweb.asm Opcodes ALOAD

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In this page you can find the example usage for org.objectweb.asm Opcodes ALOAD.

Prototype

int ALOAD

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Usage

From source file:com.asakusafw.dag.compiler.internalio.InternalOutputAdapterGenerator.java

License:Apache License

/**
 * Generates {@link InternalOutputAdapter} class.
 * @param context the current context//from   ww  w  .  j  a v a  2 s.com
 * @param outputs the target output specs
 * @param target the target class
 * @return the generated class data
 */
public ClassData generate(ClassGeneratorContext context, List<Spec> outputs, ClassDescription target) {
    ClassWriter writer = newWriter(target, InternalOutputAdapter.class);
    defineAdapterConstructor(writer, InternalOutputAdapter.class, v -> {
        for (Spec spec : outputs) {
            v.visitVarInsn(Opcodes.ALOAD, 0);
            getConst(v, spec.id);
            getConst(v, spec.path);
            getConst(v, spec.dataType);
            v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, target.getInternalName(), "bind", //$NON-NLS-1$
                    Type.getMethodDescriptor(typeOf(InternalOutputAdapter.class), typeOf(String.class),
                            typeOf(String.class), typeOf(Class.class)),
                    false);
            v.visitInsn(Opcodes.POP);
        }
    });
    return new ClassData(target, writer::toByteArray);
}

From source file:com.asakusafw.dag.compiler.internalio.InternalOutputPrepareGenerator.java

License:Apache License

/**
 * Generates {@link InternalOutputPrepare} class.
 * @param context the current context/*from www .  j  ava2  s  .  c  om*/
 * @param specs the target output specs
 * @param target the target class
 * @return the generated class data
 */
public ClassData generate(ClassGeneratorContext context, List<Spec> specs, ClassDescription target) {
    ClassWriter writer = newWriter(target, InternalOutputPrepare.class);
    defineEmptyConstructor(writer, InternalOutputPrepare.class, v -> {
        LocalVarRef self = new LocalVarRef(Opcodes.ALOAD, 0);
        for (Spec spec : specs) {
            self.load(v);
            getConst(v, spec.id);
            getConst(v, spec.path);
            getConst(v, spec.dataType);
            v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, target.getInternalName(), "bind", //$NON-NLS-1$
                    Type.getMethodDescriptor(typeOf(InternalOutputPrepare.class), typeOf(String.class),
                            typeOf(String.class), typeOf(Class.class)),
                    false);
            v.visitInsn(Opcodes.POP);
        }
    });
    return new ClassData(target, writer::toByteArray);
}

From source file:com.asakusafw.dag.compiler.jdbc.PreparedStatementAdapterGenerator.java

License:Apache License

static ClassData generate(ClassDescription target, DataModelReference dataType,
        List<PropertyReference> properties) {
    ClassWriter writer = newWriter(target, Object.class, PreparedStatementAdapter.class);

    Optional<FieldRef> calendarBuf = properties.stream().map(PropertyReference::getType)
            .map(PropertyTypeKind::fromOptionType)
            .filter(Predicate.isEqual(PropertyTypeKind.DATE).or(Predicate.isEqual(PropertyTypeKind.DATE_TIME)))
            .findAny().map(k -> defineField(writer, target, "calendarBuf", typeOf(java.util.Calendar.class)));

    defineEmptyConstructor(writer, Object.class, v -> {
        LocalVarRef self = new LocalVarRef(Opcodes.ALOAD, 0);
        calendarBuf.ifPresent(f -> {/*from  ww  w.jav a 2 s  .  co  m*/
            self.load(v);
            v.visitMethodInsn(Opcodes.INVOKESTATIC, typeOf(java.util.Calendar.class).getInternalName(),
                    "getInstance", //$NON-NLS-1$
                    Type.getMethodDescriptor(typeOf(java.util.Calendar.class)), false);
            putField(v, f);
        });
    });

    defineBody(writer, dataType, properties, calendarBuf);

    writer.visitEnd();
    return new ClassData(target, writer::toByteArray);
}

From source file:com.asakusafw.dag.compiler.jdbc.PreparedStatementAdapterGenerator.java

License:Apache License

private static void defineBody(ClassWriter writer, DataModelReference dataType,
        List<PropertyReference> properties, Optional<FieldRef> dateBuf) {
    MethodVisitor v = writer.visitMethod(Opcodes.ACC_PUBLIC, "drive", //$NON-NLS-1$
            Type.getMethodDescriptor(typeOf(void.class), typeOf(PreparedStatement.class), typeOf(Object.class)),
            null, new String[] { typeOf(SQLException.class).getInternalName(), });
    LocalVarRef row = new LocalVarRef(Opcodes.ALOAD, 1);
    LocalVarRef object = cast(v, 2, dataType.getDeclaration());

    int columnIndex = 0;
    for (PropertyReference property : properties) {
        columnIndex++;/*from w  ww. j ava  2 s  .c  o  m*/

        object.load(v);
        getOption(v, property);
        LocalVarRef option = putLocalVar(v, Type.OBJECT, 3);

        Label elseIf = new Label();
        Label endIf = new Label();

        // if (option.isNull()) {
        option.load(v);
        v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, typeOf(ValueOption.class).getInternalName(), "isNull", //$NON-NLS-1$
                Type.getMethodDescriptor(typeOf(boolean.class)), false);
        v.visitJumpInsn(Opcodes.IFEQ, elseIf);

        row.load(v);
        getConst(v, columnIndex);
        doSetNull(v, property);

        v.visitJumpInsn(Opcodes.GOTO, endIf);

        // } else { @elseIf
        v.visitLabel(elseIf);

        row.load(v);
        getConst(v, columnIndex);
        option.load(v);
        doSetValue(v, property, dateBuf);

        // } @endIf
        v.visitLabel(endIf);
    }

    v.visitInsn(Opcodes.RETURN);
    v.visitMaxs(0, 0);
    v.visitEnd();
}

From source file:com.asakusafw.dag.compiler.jdbc.ResultSetAdapterGenerator.java

License:Apache License

static ClassData generate(ClassDescription target, DataModelReference dataType,
        List<PropertyReference> properties) {
    ClassWriter writer = newWriter(target, Object.class, ResultSetAdapter.class);

    FieldRef buffer = defineField(writer, target, "buffer", typeOf(dataType.getDeclaration()));
    Optional<FieldRef> calendarBuf = properties.stream().map(PropertyReference::getType)
            .map(PropertyTypeKind::fromOptionType)
            .filter(Predicate.isEqual(PropertyTypeKind.DATE).or(Predicate.isEqual(PropertyTypeKind.DATE_TIME)))
            .findAny().map(k -> defineField(writer, target, "calendarBuf", typeOf(java.util.Calendar.class)));

    defineEmptyConstructor(writer, Object.class, method -> {
        LocalVarRef self = new LocalVarRef(Opcodes.ALOAD, 0);
        self.load(method);/*  w w w.j  av  a2s.com*/
        getNew(method, dataType.getDeclaration());
        putField(method, buffer);
        calendarBuf.ifPresent(f -> {
            self.load(method);
            method.visitMethodInsn(Opcodes.INVOKESTATIC, typeOf(java.util.Calendar.class).getInternalName(),
                    "getInstance", //$NON-NLS-1$
                    Type.getMethodDescriptor(typeOf(java.util.Calendar.class)), false);
            putField(method, f);
        });
    });

    defineBody(writer, dataType, properties, buffer, calendarBuf);

    writer.visitEnd();
    return new ClassData(target, writer::toByteArray);
}

From source file:com.asakusafw.dag.compiler.jdbc.ResultSetAdapterGenerator.java

License:Apache License

private static void defineBody(ClassWriter writer, DataModelReference dataType,
        List<PropertyReference> properties, FieldRef valueBuffer, Optional<FieldRef> calendarBuf) {
    MethodVisitor v = writer.visitMethod(Opcodes.ACC_PUBLIC, "extract",
            Type.getMethodDescriptor(typeOf(Object.class), typeOf(ResultSet.class)), null,
            new String[] { typeOf(SQLException.class).getInternalName(), });
    LocalVarRef rs = new LocalVarRef(Opcodes.ALOAD, 1);
    valueBuffer.load(v);//from w w  w .j  a  va  2 s .  c om
    LocalVarRef buf = putLocalVar(v, Type.OBJECT, 2);

    int columnIndex = 0;
    Set<PropertyName> sawSet = new HashSet<>();
    for (PropertyReference property : properties) {
        columnIndex++;
        Label elseIf = new Label();
        Label endIf = new Label();

        buf.load(v);
        getOption(v, property);

        rs.load(v);
        getConst(v, columnIndex);
        doGetValue(v, property, calendarBuf);

        // if (rs.wasNull()) {
        rs.load(v);
        v.visitMethodInsn(Opcodes.INVOKEINTERFACE, typeOf(ResultSet.class).getInternalName(), "wasNull",
                Type.getMethodDescriptor(typeOf(boolean.class)), true);
        v.visitJumpInsn(Opcodes.IFEQ, elseIf);
        if (isWideType(property)) {
            v.visitInsn(Opcodes.POP2);
        } else {
            v.visitInsn(Opcodes.POP);
        }
        doSetNull(v);
        v.visitJumpInsn(Opcodes.GOTO, endIf);

        // } else { @elseIf
        v.visitLabel(elseIf);
        doSetValue(v, property);

        // } @endIf
        v.visitLabel(endIf);

        sawSet.add(property.getName());
    }

    // resets other properties
    for (PropertyReference property : dataType.getProperties()) {
        if (sawSet.contains(property.getName())) {
            continue;
        }
        buf.load(v);
        getOption(v, property);
        doSetNull(v);
    }

    buf.load(v);
    v.visitInsn(Opcodes.ARETURN);
    v.visitMaxs(0, 0);
    v.visitEnd();
}

From source file:com.asakusafw.dag.compiler.jdbc.windgate.WindGateJdbcInputAdapterGenerator.java

License:Apache License

/**
 * Generates {@link JdbcInputAdapter} class.
 * @param context the current context/*w w w  . j a v  a2s .  co m*/
 * @param specs the target input specs
 * @param target the target class
 * @return the generated class data
 */
public static ClassData generate(ClassGeneratorContext context, List<Spec> specs, ClassDescription target) {
    Arguments.requireNonNull(context);
    Arguments.requireNonNull(specs);
    ClassWriter writer = newWriter(target, JdbcInputAdapter.class);
    defineAdapterConstructor(writer, JdbcInputAdapter.class, v -> {
        LocalVarRef self = new LocalVarRef(Opcodes.ALOAD, 0);
        for (Spec spec : specs) {
            self.load(v);
            getConst(v, spec.id);
            getConst(v, spec.model.getProfileName());

            getConst(v, spec.model.getProfileName());
            getConst(v, spec.model.getTableName());
            getList(v, Lang.project(spec.model.getColumnMappings(), Tuple::left));
            getNew(v, getAdapter(context, spec));
            v.visitMethodInsn(Opcodes.INVOKESTATIC, typeOf(WindGateJdbcDirect.class).getInternalName(), "input",
                    Type.getMethodDescriptor(TYPE_BUILDER, typeOf(String.class), // profileName
                            typeOf(String.class), // tableName
                            typeOf(List.class), // columnNames
                            typeOf(Supplier.class)), // adapter
                    false);
            Lang.forEach(Optionals.of(spec.model.getCondition()), s -> {
                getConst(v, s);
                v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, TYPE_BUILDER.getInternalName(), "withCondition", //$NON-NLS-1$
                        Type.getMethodDescriptor(TYPE_BUILDER, typeOf(String.class)), false);
            });
            Lang.forEach(spec.model.getOptions(), s -> {
                getConst(v, s);
                v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, TYPE_BUILDER.getInternalName(), "withOption", //$NON-NLS-1$
                        Type.getMethodDescriptor(TYPE_BUILDER, typeOf(String.class)), false);
            });
            v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, TYPE_BUILDER.getInternalName(), "build", //$NON-NLS-1$
                    Type.getMethodDescriptor(typeOf(Function.class)), false);
            v.visitMethodInsn(Opcodes.INVOKEVIRTUAL, target.getInternalName(), "input", //$NON-NLS-1$
                    Type.getMethodDescriptor(typeOf(JdbcInputAdapter.class), typeOf(String.class),
                            typeOf(String.class), typeOf(Function.class)),
                    false);
            v.visitInsn(Opcodes.POP);
        }
    });
    writer.visitEnd();
    return new ClassData(target, writer::toByteArray);
}

From source file:com.asakusafw.dag.compiler.jdbc.windgate.WindGateJdbcOutputProcessorGenerator.java

License:Apache License

/**
 * Generates {@link JdbcOutputProcessor} class.
 * @param context the current context//from   w  w w.  j a  va2s  .c o m
 * @param specs the target operation specs
 * @param target the target class
 * @return the generated class data
 */
public static ClassData generate(ClassGeneratorContext context, List<Spec> specs, ClassDescription target) {
    Arguments.requireNonNull(context);
    Arguments.requireNonNull(specs);
    ClassWriter writer = newWriter(target, JdbcOutputProcessor.class);
    defineEmptyConstructor(writer, JdbcOutputProcessor.class, v -> {
        LocalVarRef self = new LocalVarRef(Opcodes.ALOAD, 0);
        self.load(v);
        specs.forEach(spec -> {
            truncate(context, v, spec);
            output(context, v, spec);
        });
        v.visitInsn(Opcodes.POP);
    });
    writer.visitEnd();
    return new ClassData(target, writer::toByteArray);
}

From source file:com.builtbroken.profiler.asm.WorldTransformer.java

/** {@link World#setBlock(int, int, int, Block, int, int)} */
private void injectSetBlock(ClassNode cn) {
    MethodNode setBlockMethod = getMethod(cn, "setBlock", "(IIIL" + getName(CLASS_KEY_BLOCK) + ";II)Z");

    if (setBlockMethod != null) {
        //Create method call
        final InsnList nodeAdd = new InsnList();

        nodeAdd.add(new VarInsnNode(Opcodes.ALOAD, 0));
        nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 1));
        nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 2));
        nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 3));
        nodeAdd.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onBlockChange",
                "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false));

        //Inject method call at top of method
        setBlockMethod.instructions.insertBefore(setBlockMethod.instructions.get(0), nodeAdd);

        //Locate all return points from the method
        List<AbstractInsnNode> returnNodes = new ArrayList();
        for (int i = 0; i < setBlockMethod.instructions.size(); i++) {
            AbstractInsnNode ain = setBlockMethod.instructions.get(i);
            if (ain.getOpcode() == Opcodes.IRETURN) {
                returnNodes.add(ain);/*from  ww w. ja  v a 2  s .  c  o  m*/
            }
        }

        //Inject calls in front of return points
        for (AbstractInsnNode node : returnNodes) {
            //Create method call
            final InsnList nodeAdd2 = new InsnList();
            nodeAdd2.add(new VarInsnNode(Opcodes.ALOAD, 0));
            nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 1));
            nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 2));
            nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 3));
            nodeAdd2.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onPostBlockChange",
                    "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false));
            //Inject method call before return node
            setBlockMethod.instructions.insertBefore(node, nodeAdd2);
        }
    }
}

From source file:com.builtbroken.profiler.asm.WorldTransformer.java

/** {@link World#setBlockMetadataWithNotify(int, int, int, int, int)} */
private void injectSetBlockWithMeta(ClassNode cn) {
    MethodNode setBlockMetaMethod = getMethod(cn, "setBlockMetadataWithNotify", "(IIIII)Z");

    if (setBlockMetaMethod != null) {
        final InsnList nodeAdd = new InsnList();

        nodeAdd.add(new VarInsnNode(Opcodes.ALOAD, 0)); //this
        nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 1)); //x
        nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 2)); //y
        nodeAdd.add(new VarInsnNode(Opcodes.ILOAD, 3)); //z
        nodeAdd.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onBlockMetaChange",
                "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false));

        setBlockMetaMethod.instructions.insertBefore(setBlockMetaMethod.instructions.get(0), nodeAdd);

        //Locate all return points from the method
        List<AbstractInsnNode> returnNodes = new ArrayList();
        for (int i = 0; i < setBlockMetaMethod.instructions.size(); i++) {
            AbstractInsnNode ain = setBlockMetaMethod.instructions.get(i);
            if (ain.getOpcode() == Opcodes.IRETURN) {
                returnNodes.add(ain);/*from  w  ww  .  j  ava2  s  .  c o m*/
            }
        }

        //Inject calls in front of return points
        for (AbstractInsnNode node : returnNodes) {
            //Create method call
            final InsnList nodeAdd2 = new InsnList();
            nodeAdd2.add(new VarInsnNode(Opcodes.ALOAD, 0));
            nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 1));
            nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 2));
            nodeAdd2.add(new VarInsnNode(Opcodes.ILOAD, 3));
            nodeAdd2.add(new MethodInsnNode(Opcodes.INVOKESTATIC, BLOCK_HOOK_CLASS, "onPostBlockMetaChange",
                    "(L" + getName(CLASS_KEY_WORLD) + ";III)V", false));
            //Inject method call before return node
            setBlockMetaMethod.instructions.insertBefore(node, nodeAdd2);
        }
    }
}